At that rate, a one-mile stretch of four-lanehighway could power about 500 homes.
以这样的速率，一段1英里4车道的公路段将可以为500个左右的家庭供电。
2
The structure comprises several arching waves of reinforced concrete, which support a four-lanehighway.
结构由几个钢筋混凝土波浪状拱构成，支撑起一条四车道的公路。
3
But when he reached a four-lanehighway with gentle curves, good visibility and little traffic, "I just about fell asleep and ran off the road... Lulled by safety, I'd acted more dangerously."